Valve-bag.



A. M. BATES.

VALVE BAG.

APPLIOATION FILED PEB. 2s, 1906.

921,664, Patented May 18, 1909 Unirse serres naar, naires.

ADELMEYR M. BATES, OF CLEVELAND, OHIO, ASSI-GNOR 'IO BATES VALVE BAG COMPANY, Ol" CLEVELAND, OHIO, A CORPORATION OF WEST VIRGINIA.

"VALVE-BAG.

Specification of Letters Patent.

Patented-'May 1e, 1909.

`Lepplic'ation`i1ed February 428,1I906'. Serial No. '$03,330.

To all whom it may concern.'

"Be it known that I, M. BATES, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State ofOhio, lhave invented a certain new and useful Improvement in Valve-Bags, of which the followin is-a specification.

My invention 're ates 'to valve bags and `has for its vobject to provide new and imseveral elements may comprise Adifferent g ieces Ofm'ate'rial suitably brought to ether. 1

he bag may beo'fany desiredma'te'ria such as cloth, aper, or other. fabric. For uroses of ustration I have shown a-bag aving'a '.satchelbotltom end closure, but my invention is susceptible "of a'p lication `to other types Iof'receptacle A ag of this character is ordinarily formed of a single sheet f 'material formed into `a tube, 'part of -vvlnch'is folded 'over toform the closure.

The invention is illustrated in the accompanying drawings, wherein- Figure l re' -resents "in erspective a bag W'itl'ithe ende osure partia'Ifl-ymade, Fig. 2 is a perspective `viertr Vof the 'closure jco'mplete with parts broken aW'a'y to show other. parts of the structure; Fig. 3, a se'ctidn'throu :ha bag 'of this 4`character in process of lfilling; Fig. 4, 'a erspe'ctive view of a modification;

1in this case, is representef'l as integral with the fside.. The bag is here shown as a four sidedfbeg, the sides eing 'represented-by the. letters A2; The -'flaps are indicated by the letters B, B1, 'B1 and B3. Prefera'lily these flaps are slittedon the lines B1. 'Opposite pairs of flaps, as for example B1, B3, arethcn olded down, the iiap B1 carrying with it the parts B5 B5. The parts B5, B6 will, therefore, lie against thefla s B, B2. In Fig. 1 I have shown the flap 1 and its associated parts in this iosition. The flaps B, B2 will then'be folded d own upon'the first mentioned flaps 'and the elements of the closure thus l formed may be secured together in any desired manner. The other end of the bag, it will be understood, maybe closed in this manner or in any desired Way. W'lien acked'for shipment, the bags Will ordinarily Ee folded flat as, for example, on the lines C, 01,02 andC3 shown in Fig. 2.

D represents the slitted edge ofthe flaps.

-I prefer to locate `the lilling opening bctween the elements-of the end closure. This may `conveniently be done by omitting to paste down or otherwise secure together .the superimposed material forming these folds. For convenience the filling opening will be essential under all conditions. the bag will be filled by means of a tube which is inserted through this lfilling opening. In

filled, 'Kre resenting a tubey and K1 the inaterial Whic enters the bag therethrough.

of theend closure, t'heelements'of Lthisclosure serving thus to'contro'l said filling opening. A valve so constructed, it will be seen, will be automatically closed by the 'material Within the bag'if suflicieit in amount Ifthe bag is 'illedth'rough the instrumentality o'f a tu'be las shown in Fi 3, *when -the filling is conip'letctllc tube Wi l be Withdrawn 'and-the material 'will ypack 4up against the under 'side of the valve 'and so eiife'ct the closure of the llingfopen'ing. 1

In '2 I have shown a valve which is tlrus formedfrom the elements of the end 'olosure, 'the valve in'this case being com osedo'f -ap B3 and an `up'gpjer Wall formed by the materiiil df'th'e fla l- The valve, it will be .understo'od, may e "located anywhere 2between the superim ose'd elements of the closure. Preferably I ocateit atthe'co'rner ofthe bag. The elements of theend c'los'u'r'e are secured one uponandther'in any desired manner, for

located atthis place although it may not be- Ordinarily.

a lower Wa'll formed l'by the materia lo'f the i Fig. 3 l'have shown a bag in process of-being 85 The valve may be formed-by the material example, by pasting, the paste being omitted, of course, at the p ace where it is desired to have the filling opening. It has been found by experience to be a very dillicult mattei' to accomplish this superficial securing together of the elements of the closuresecurely and still get a filling opening of uniform size. It is important in, some cases that the filling openings should'be uniform and particularly thatthey should not be made too large, as this might result in a leaky bag. I, therefore, prefer to secure the elements Aofthe closure together in such a way as to ell'ectually deiine the extent of the 'filling opening. '.lo this end I use a fastening device E which is shown in Fig.v 2 as a staple, clamping together the folds B and B. The-valve will be defined on the other side bythe edge of the.

bag. Preferably the fastening device E is located under one of the folds of the closure. For example, I have shown it as in position t0 be covered by the flap B2, the corner of this flap being'shown turned up in Fig. 2 to illustrate the position of' the fastening device. ',lhe valve, when under sufficient pressure from the material i'vitliin the bag, will effectually close the `filling openingv and prevent the escape, of "the material. In certain cases,fh0wever, it may be desirable to have further means for hindering the escape of the v' material. through the filling opening. 'lo acw complish this end I construct the valve or structure.

illustration merely, I have shown the valvev the parts which perform the function of a valve, in such a Way so that by their peculiar conformation they Will entangle, impede or obstruct the material coming in contact with them.

In Fig. 2, for-example, I have shown the under wall of the valve as provided with a number of marginal slits D forming, in effect, a fringe on the inner edge of the valve. It will be understood that with the handling of the bag the part of the valve so treated will be entangled with the material and the parts themselves so engaged one Withvanotlier that the escape of material will be very el'ectually hindered.

IiiFig. 4t, I have shown a son'iewhatmodified-form of valve. In this case the valve is iliade of a separate piece of material F seeuredbetween the elen'ients of the end closure. This valve will preferably extend be yond the lower element of the closure so as to forin Aa long valve or filling duet leading into,

the interior of the bag. -This valve piece F I have shown as folded so as to form upper and levier valve elements. The edges of the extension piece may be fringed as at F1 to insure complete closure of the filling-opening.

In Fig. 6 I have shown another modified In this instance, for purposes of as com osedof the superimposed elements of the en( closure, the inner one of these elements, forniingthe inner wall of the valve,

.bag body with a being plaited er crimped as shown" at G. l The material, it will be understood, will pack ,up or down at the case may be, upon th iials, as for example the bag may belniade of paper and the inwardly extending or fringedvalve portion may be ol' cloth. The valve )ortion is broadl s eakin )i'ovidedwitha variable or expanding edge. That is With an edge capable .of assuming a somewhat irregular position or a position different from that which it 'would assume if vit eonsisted of the edge of a single piece of material. The

fringededge and the criinpedvedge are but illustrations of the idea. Such an expanding or variable edge will readily-cling around the tube in the case of stiff or heavy-material toprevent the escape of material, While the bag is being iilled, and it will also more perfectly seat against the opposed face when the tube is \.'ithdi'a.\vn to give the valve effect. This is particularly true in the ease' of heavy or smooth or glazed material and where the valve. opening is of considerable Width.

l. In a valve bau, the combination of a. bag body with a 4folclded closure, the superimposed parts forming the closure being superlicially secured together in such manner as to form a receptacle closedv except for a filling opening, andv a fastening device extending through' the fabric of the bag to deline the filling opening.

2. Ina valve bag, the combination of albag body with a folded end closure, and a valve formed by superiin iosed material at one end of said bag,said va ve defined at one side by the coi-nerof the bag and at the other by a fastening device.

iio

3. In a valve bag, the combination of a olded end closuie, the superimposed elements of said closure being 'pasted together, a valve formed by saidele- Ile ments, and a4 fastening device extending through said superimposed elements to` define such valve.

,4. In a valve bag, the combination of a bag body of paper, with a foldedend closure, the superimposed elements of said closure.

.being pasted together, a valve formed by said elements, and ainetallic fastening device to secure such' superimposed elements together.

5. In a valve bag, the combination of a bag body having superimposed Satchel shaped end portions Witlifa longitudinally folded valve forn'iing extension piece between and extending inwardly beyond such supersuperimposed parts, the ends of such oxiinposed pairt. b b l l tension piece slit or fringed.

6. na va ve ag, the com ination o a. E 1 i, ,i w bag body having superimposed Satchel I y ADELA/1ER M BA1 hb' 5 sha ed end portions with a longitudinally Witnesses:

fol( ed Valve forming extension vpiece be- R. J. BULKLEY,l tween and extending inward-ly beyond such l JN0. P. DEMPSEY. 

